Ceramic disc furnace



FIG. 1 is a front perspective view for the ceramic disc furnace, showing the new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a top view thereof; and,

FIG. 4 is a back side elevational view thereof.

The surface(s) or portion(s) of the article not shown in the drawing or described in the specification form(s) no part of the claimed design. 

The ornamental design for a ceramic disc furnace, as shown and described. 